[Bruce Nevin (2006.10.22.2229 EDT)]
Just saw a summary of research into moths that have evolved control
systems whose inputs are perceptions of bats' echolocation sounds. Some
take evasive action by flying erratically about, others by folding their
wings and plummeting. The interesting point was that moths of the same
kind in locations where there are no bats have the same neural
structures, but the weighting of signals is reduced. Possibility of a
fascinating gray area between evolutionary change (in populations over
generations) and learning in individuals. Not Lamarckian, but perhaps
an inherited capacity to learn (faster than would moths without these
neural structures).
/BN
(Reduced by circumstances and commitments to lurking)